Multi Media Interface

The Multi Media Interface (MMI) system is an in-car user interface media system developed by Audi, and was launched at the 2001 Frankfurt Motor Show on the Audi Avantissimo concept car. Production MMI was introduced in the second generation Audi A8 D3 in late 2002 and implemented in majority of its latest series of automobiles.

MMI consists of a single integrated interface, which controls a variety of devices and functions of the car. The system consists of the MMI terminal and the MMI display screen.

The central element of the MMI terminal is the control dial. This dial can be rotated, to navigate up and down through menus, and pressed to activate a selected highlighted function. Starting with MMI 3G system an integrated joystick in the main control dial can be used to (for example) navigate the map. Depending on the MMI generation and configuration, four to eight function buttons surround the control dial which are used to launch the various features. The MMI screen is available as a five-inch monochrome black-and-red or seven-inch 16:9 full colour display, depending on the variation of MMI fitted in the car. MMI uses Media Oriented Systems Transport (MOST) technology to interconnect the various systems. Harman Becker Automotive Systems manufactures the MMI system, utilizing QNX Neutrino's Real Time Operating System (RTOS) software.

MMI operates a large number of in car entertainment components, car electronics, and other functions. The list below indicates the scope of systems controllable by MMI. However, depending on the actual car model, along with which version was specified (MMI Basic, MMI High, etc.), only some, and not all functions will be applicable or available.

The MMI system has been improved over the years and now features internet connectivity through MMI Connect introduced in recent models.

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